I am thinking to write some mapper to do conversion of mainframe files toascii format and contribute back.

And before even i do something i wanted to confirm from you guys thefollowing

- Do we already have some mapreduce library doing the same work ? - Is there anything in Hadoop which makes such kind of conversion not possible , so that i dont end up spending time on something which cannot be done

I am not mainframe guy so wanted to ask upfront.

Here is what in my mind till now

In Oracle JDK following are supported encodings [1] , i plan to use alreadyexisting libraries such as [2] or [3] to do the conversion.